Yes. I'm ultra careful with singles in that I'll spread a typical £80 bet round a couple of layers and use an exchange as well. but hitting a multiple is not good for account health. Coral and Sky have bother restricted me because of hitting one. Others have been ok. The Sky one hurts because sometimes they'll go it alone pricing up a race so I cannot use anyone else - the maximum they allowed me on Thomas Darby this Friday in their Supreme trial was £12.50 @ 4s and he's now 11/4 across the board.